Direction of Arrival (DOA) Estimation Device and Method

US20140334265A1Inactive Publication Date: 2014-11-13KOREA ADVANCED INST OF SCI & TECH
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
KOREA ADVANCED INST OF SCI & TECH
Publication Date
2014-11-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

A direction of arrival (DOA) estimation device and method are provided, in which the DOA estimation device includes a sensor unit configured to detect a signal and comprising two or more sensors to output sensor signals as a detect signal in response to the detected signal, and a controller configured to calculate statistical distribution data indicative of statistical distribution of each of the sensor signals outputted from the two or more sensors, respectively, retrieve statistical distribution data indicative of statistical distribution of source signal which is non-stationary signal entrained in the signal of the calculated statistical distribution data, and estimate DOA of the source signal based on the retrieved statistical distribution data.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority from Korean Patent Application No. 10-2013-0053828, filed on May 13, 2013, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety.BACKGROUND

[0002] 1. Field of the Invention

[0003] The present invention relates to a direction of arrival (DOA) estimation device, and more particularly, to a DOA estimation device based on 2p-th order signal with high-resolution capability in underdetermined case and noise signal subspace constraint optimization, and a method.

[0004] 2. Description of the Related Art

[0005] Advancement in electronic, communication and mechanic technologies has enabled human race to live more comfortable. In many parts of human life, autonomous systems have been developed to move and work on behalf of human. The autonomous systems are so implemented to perceive signals from sound sources including human, airplanes, birds or submarines and...

Claims

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